No one knows exactly what the limit is. You can reset it by restarting Homey, or wait for
24h.
The CallMeBot app provides for Whatsapp, Signal, Telegram and Messenger. I use it for a long time now, with Signal and Telegram.
I use CallMeBot Signal to duplicate (and save) all my timeline entries, right to my mobile phone. Also the notifications are searchable this way.
Of course Signal and Telegram have rate limits, but I reached them very, very few times.
The timeline has also a rate limit, so it’s wise to send certain notification elsewhere (Telegram for instance)
For things I don’t need to read right away, and to have historical logs, I use the Simple Log app. It works offline on Homey itself, and has no rate limit.
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It’s a pity Homey still doesn’t have a decent log system, but the available apps take care of that, and make it a great smart home controller imho.
What do you mean by this, they can’t reach you by your provided email address?
Like I wrote before, there are limits to the native messaging systems, every Homey has the same limits.